Previous bonus - Next bonus

Packet 8: Bonus 6

Clay minerals like illite and kaolinite are produced from the chemical weathering of this type of mineral. For 10 points each:
[10h] Name this general class of minerals whose compositions change from being "calcium-rich" to "sodium-rich" when moving down the continuous branch of Bowen's Reaction Series.
ANSWER: feldspars [accept plagioclase feldspar]
[10m] Orthoclase feldspar is given a value of 6 in this relative system of measurement, which gauges the ability of a mineral to resist scratches from other minerals.
ANSWER: Mohs hardness scale
[10e] All feldspars contain silicon, oxygen, and this metallic element. This third most abundant element in the Earth’s crust is symbolized Al (“A-L”).
ANSWER: aluminum [or aluminium]
<Earth Science — Kevin Qiu> | SHOW-ME Four Packet 8

HeardPPBE %M %H %
2519.20100%72%20%

Back to bonuses

Conversion

TeamOpponentPart 1Part 2Part 3TotalParts
ChelseaDeWitt B0101020ME
DeWitt AGrand Ledge0101020ME
Detroit Catholic Central AWilliamston10101030HME
Hillsdale Academy CDetroit Country Day B0101020ME
Hillsdale Academy DTroy A001010E
HoltHillsdale Academy B001010E
New Buffalo ARockford B001010E
New Buffalo BColdwater001010E
Okemos ADetroit Catholic Central B0101020ME
Okemos BDetroit Country Day A0101020ME
Traverse City Central BNew Boston Huron0101020ME
Troy BU of D Jesuit0101020ME
Utica AcademyDetroit Catholic Central C0101020ME
White Cloud ARockford A0101020ME
White Cloud BTaylor001010E

Summary

TournamentEditionMatchHeardPPBE %M %H %
Rube Goldberg XIX11/20/2025✓1517.33100%67%7%
SHOW-ME Four Nationwide HS11/20/2025✓528.00100%100%80%
SPOOKY IX11/20/2025✓516.00100%60%0%